Improvement in treadles



vUNITED STATES PATENT @EEIcE- GALEB HOPKINS, OF WALTHAM, MASSACHUSETTS.

IMPROVEMENT IN TREADLES.

Speeitcation forming part of Letters Patent N0. 186,564., dated January 23,1877; application fil/ed K January 27, 1876.

. To all whom it may concern: i

' taching an arm, D, to the treadle-bar c '0, at or near its top, and then passing the connecting rod or bar E from this arm to the crank ofthe wheel, instead of direct from the treadlebar to the crank, to equalize'the leverage, and

y at the same time to overcome, far as practicable, the objectionable feature heretofore eX- perienced in using a swing treadle for propeiling small machinery by foot-power, of the movement being much quicker in one direc! tion than in the other; second, so to combine thisimproved swing-treadle with a iiy-wheel that `on simply screwing the pedestal of .an `upright pillar to the floor the whole will be y ready for use.

The invention is `illustrated in detail in the accompanying perspective drawing, in which A represents an upright pillar with dat base a, and with the arm B at its top, reaching squarely over and somewhat beyond the wheel F, which is made to revolve on an axle attached to the side of the pillar A. From the arm B is suspended the treadle-bar c c, at or near the top of which the arm D is attached,

and from this arm D the connecting-bar Eis 1 passed to the crank, or to a wart on one of the arms of the wheel, made to serve the purposes ot' a crank, as shown at e.

In use, by a natural and easy movement of caused correspondingly to rise and fall, and

through its connection with the barE the wheel -is made to revolve.

rIhe amount of leverage obtained, and the control of the operator over the movements of the wheel, are found to be much greater by this contrivanee than with the ordinary upanddown treadle.

While one object of my invention, as herein described, is to furnish a ily-Wheel with swing-treadle for light lathe-work, so combined and adjusted as to be complete within itself, and ready for use immediately upon placing it in position and screwing the pedestal C to the door, it will be evident that the treadle-bar c c, with its attachments, may be suspended from the under side of a bench, table or any other suitable support, and the wheel from aseparate support, dispensing e11- tirely with the pillar A, and in this way be` rendered available for running sewingmachines, and for other like uses.

I claim as my invention- Y The combination of the treadle-bar c c, terminated in the\stirrnp G atits lower end, and having thearm D near its top, with the pillar A, having the arm B at its top, the connecting-bar E, and the wheel F, substantially as described.

GALEB HOPKINS.

Witnesses:

JOHN EATON, H. F. BOWERS. 

